Guam weather in August 2025
Guam weather in August 2025
Day
31 °C
Night
25 °C
Sea
29 °C
Precipitation
326 mm
in month
Rainy days
16 days
in month
Daylight
12 hours
average
Sunshine
5 hours
average
Humidity
89 %
Day
31 °C
Night
25 °C
Sea
29 °C
Precipitation
326 mm
in month
Rainy days
16 days
in month
Daylight
12 hours
average
Sunshine
5 hours
average
Humidity
89 %
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Weather overview and FAQs
Weather overview
In Guam in August, the average air temperature ranges from 31 °C (88 °F) during the day to 25 °C (76 °F) at night. There are 16 days of rain on average, where the rainfall is 326 mm (12.83 in).
Are there good conditions to visit in Guam in August?
There are good conditions for visiting in Guam in August. The daily temperatures in this month reach pleasant 31 °C (88 °F). The temperature of the sea will be perfect at 29 °C (84 °F). At night, temperatures hover around a pleasant 25 °C (76 °F). August is the wet season month in Guam, which means that there may be more frequent rains during your stay.
What is the sea temperature in August in Guam?
The temperature of the sea in Guam in August is 29 °C (84 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.
What temperature can I expect during the day in August in Guam?
In Guam in August, the average daily temperatures will be 31 °C (88 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
What is the rainfall intensity in August in Guam?
There is precipitation of 326 mm (12.83 in) in August in Guam, which means 11 mm (0.43 in) rainfall per day on average.
How many rainy days can I expect in Guam in August?
There are 16 days, which are rainy in August in Guam, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.8 days of the week, or in general - 54 % days.
What is the night temperature in Guam in August?
The average night temperature in Guam in August is 25 °C (76 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How many hours of sun to expect in Guam in August?
In Guam in August, you can expect around 5 hours of sunshine.
How long is the day (from dawn till dusk) in Guam in August?
The length of daylight in Guam in August is 12 hours.
Is August part of the wet season in Guam?
Yes, in August in Guam there is a wet season with 16 days, when there is rain in a month.
Is it hot in August in Guam?
In August in Guam, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How windy is Guam in August?
In Guam in August, there will be an average wind scale of 4.
Is Guam rainier in August than in September?
No, in August in Guam it does not rain more than in September.
How humid is Guam in August?
In August in Guam, expect humidity around 89 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.